Vulcanizer.



P. E. WELTON.

VULCANIZER.

APPLICATION FILED MAILG, 1913.

1 1 21 ,2 1 4, Patented Dec. 15. 1914.

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THE NORRIS PETERS CO PHOTO L/THo, \VAhHINLIION D c.

UNIiTiED STATE PATENT @FFTCE.

PARK EUGENE WELTON, OF AKRON, OHIO.

VULCANIZER.

Application filed March 6, 1913.

proved vulcanizer of the type referred to in which improved means are provided for removing the nest of molds from the vulcanizer, and having improved means for lifting the head or cover of the vulcanizer from the open body portion when required, the means for lifting the cover and for clamping the mold together within the vulcanizer being the same.

Other novel features will appear in the detailed description given hereafter and other special objects sought are described.

With the foregoing and other objects in view, the invention consists in the novel con struction, combination and arrangement of parts constituting the invention to be hereinafter specifically described and illustrated in the accompanying drawings which form a part hereof wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings in which similar reference-numerals indicate like parts in the different figures, Figure 1, is a view partly 1n side elevation and partly in vertical section on line X X of Fig. 2; Fig. 2, is a plan view of a vulcanizer embodying this invention; Fig. 3, is a plan view of a ring employed for locking the cover in position; and, Fig. 4, end views of lugs on the locking-ring and vulcanizer for locking the locking-ringin position.

Referring to the drawings in detail, the reference numeral 1 denotes an upright casing or body portion preferably cylindrical in cross section and provided with a lower Specification of Letters Patent.

Patented Dec. 15, 1914. Serial N 0. 752,445.

water or condensed steam therefrom. The

upper and normally open marginal portion of the vulcanizer is provided with a. ringshaped member or collar 8 which is provided with an upwardly-turned flange 9 which in turn is provided with a series of inwardly and horizontally-projecting lugs 10, regularly spaced apart, the spaces between these lugs 10 forming notches for a purpose to be later described. The closure device for this vulcanizer embodies a cover 11 provided across its under face with a plurality of ribs 12 for a purpose to be later described.

Secured to the cover 11 is a fixed ring 13, Lshaped in cross-section, and constituting a support for locking ring 14 which is revoluble thereon. The locking ring is provided with a plurality of outwardly-extending lugs 15 corresponding to the lugs 10 on the flange 9 so that when the cover is lowered to position to bring the lower portion of the ring 13 at rest on the horizontal portion of the collar 8, the notches 15 on the revoluble locking ring 1 1- will pass through the notches between the lugs 10, and when the locking ring 14 is given a partial rotation, the lugs 15 will interlock below the lugs 10, thereby securely holding the cover against upward movement.

In practice, I preferably incline the upper faces of the lugs 15 and under faces of the lugs 10 so that when they engage the wedging action will be set up by the revolution of the locking ring 14 to thereby securely seal the cover in position and render the joint between the cover and the vulcanizer fluid-tight. The cover 11 is provided with a pair of stufling boxes or packing glands 16 through which extend vertically reciprocatory rods 17, the packing glands rendering the joints between the cover 11 and the body 1 is a flanged collar 19, which serves as a stop for the rack 18 at the lower end of its vertical reciprocation. The rack 18 is provided-with openings which receive the vertical rods 17. Below the rack 18 the rods 17 are provided with stops on abutments 20 for a purpose to be later the vulcanizer cover .11 the rods 17 are also provided with stops 21. The cover is provided with a pair of up\vardly-pro ect1ng hooks or eyes 22 for a purpose to be later described.

"Secured preferably at opposite SldQS of the vulcanizer body 1 are a pair of rams 23 held in position through the medlum of hold-fast devices 24 which preferably engage the body portion 1. The rams are each provided with interior bearings 25 in wh ch are slidably mounted piston rods 26 being rendered fluid-tight through the medium of packing glands'27. The rams 23- are provided with inlets 29 and drain pipes 30. The upper ends of the'piston-rods 26 are shouldered and are provided with stops 31 for holding a cross-head 32 securely in position. This cross-head is preferably ringshaped and is provided withinturned bifurcated lugs 33 between the members of-each of which is 'pivotally -mounted a hook 34: which-is provided with a counterweight 35. The hooks 34 are preferably mounted above the loops or eyes 22 and are adaptedto engage the-latter when the cross-head 32 is lowered sufficiently. A heating fluid for causing the vulcanizing operation is introducedinto the cylinder .lthrough an inlet opening 36.

In practice, this vulcanizer will be usually mounted below the floor level of a factory, which floor level is indicated by the reference numeral 37 so as to enable the vulcanizer to be easily reached forfilling and emptying.

In practice, the operation of'the device is as follows: The operating fluid in the rams 23 is withdrawn'allowing the cross-head 32 to fall low enough toe-enable the hooks 34: to engage the eyes 22, thenthe locking ring 14L is revolved sufficiently to disengagethe lugs 15 from the lugs 10. F-luid under pressure is admitted to the-rams 23 through the inlets 29 causing the pistons 28 to raise the cross-head 32 which lifts the 'vulcanizer cover upwardly and also lifts the rack 18 sufficiently high to permit the operators to place the molds on the rack 18 and in practice, this rack is usually lowered gradually as the molds are placed, the latter operation being permitted by slowly withdrawing the fluid from the rams-23. After the necessary amount of molds have been placed on the rack 18 the latter is lowered sufiiciently to permit the cover to be placed temporarily in position, this latter operation being permitted bythe fact that during the lowering of the cross-head sufiiciently to lower the described. Abovewith said carrying member,

cover to position the rods 17 will slide through the openings in the-rack 18 until the hooks3l can be disengaged from the eyes 22 after which the cover is seated. The locking ring 14 is then given a partial rotation to lock the cover in position. The pistons are then raised and in doing so, the abutments 19 on the lower ends ofthe rods 17- engage the rack 18 shifting the latter upwardly until the molds are clamped against theribs-12ontheunder face of the cover 11. After the molds have been firmly clamped together the heating fluid is admitted through the opening 36 until vulcanization Y has taken place.

I claim 1. A vulcani'zer comprising a body member andacover therefor, a shiftable moldcarrying member operating to clamp 1I10ldS against said cover, a-verticallymovable rod extendingthrough said cover and connected a cross-head outside of'said vulcanizer to which said/rod is connected, a ram outside of and positioned at one side ofsaid'vulcanizer for reciprocating said cross head tothereby shift the position of said carrying-meinben- 2. A vulcanizer comprising abody-member and a cover therefor, a shiftable moldcarrying member within said vulcanizer operating to clamp molds against said cover, a cross-head positioned outside of said vulcanizer provided with meansfor shifting the position of said cover, a rod connecting with said cross-head engaging said carrying member for shifting the latterpand a ram positioned outside and at one side of said vulcanizer for shifting said cross-head.

3. A vulcanizer comprising a'body member and its cover, a pair of-rams positioned outside of said body memberf and with their axes in parallelism with respect to the axis of the vulcanizer, a cross-head connected with the free ends of the pistons of said rams,

means carried loysaid cross-head and cover arranged 'to interengage when the crosshead is moved'toa lower position and thereby raise said cover when said cross-head is raised, rods eXtending'from said cross head through said cover into said vulcanizer, a mold-carrying rack within said vu'lcanizer engaged by-said rods a stop in said vulcanizer to limit the lower movement of said rack-in unison with said rods and to per-- mit the free sliding downwardly of the' latter during the suspension of movement of said rack, and means on said rods to engage sald rack and ralse the same when-said rods are raised by-sald crosshead to its upper position.

4:. A vulcanizer comprising a body member and its cover, a mold-carrying member operating toclamp molds against said cover, a rod extending through said cover con-- nected with said carrying member, a crosshead outside of said vulcanizer to which In testimony whereof I have hereunto set said rod is connected, a ram outside of said my hand in presence of two subscribing Witvulcanizer for reclprocating sald cross-head nesses.

to shift the position of the carrying member, PARK EUGENE WELTON. and suspending means depending from said Witnesses:

cross-head, adapted to automatically en- C. E. HUMPHREY,

gage said cover. A. L. MOCLINTOCK.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. G. 

